ZIGBEE TECHNOLOGY Raghda Al-dwaimeh . University of Jordan. Abstract—this document describes the concept of ZigBee. It is wireless network standard. Possible network topologies and device types are shown. Finally, the application of ZigBee devices in everyday life was proposed. 802.15.4 standard for wireless networks and full mesh networking support, 128bit AES security. III. HISTORY ZigBee-style networks began to be vision around 1999, when many installers recognized that both Wi-Fi and
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American International University Table Of Contents Network Architecture/Model ........................................................................................ Page 3 Star Network Topology (before the donation) .............................................................. Page 5 Star Network Topology (after the donation) ................................................................. Page 6 Advantages of the Star Network Design .......................................................
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In a hierarchical star topology, all of the computers within the network are connected to a single, centrally located point which is usually a hub of servers and switches located in the main equipment room and interconnected through the main cross-connection. This particular topology is typically found in commercial buildings where there is a horizontal cross-connection with a workgroup switch located in a telecommunications room that allows backbone cabling to interconnect with horizontal cabling
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arrangement between the network devices and computers is known as, network topology. As the definition implies the name is loosely tied to the actual appearance the network. There are several topologies; three of the more known ones are Star, Bus, and Ring. The Star topology is a network that is connected through a central device and all the network devices; printers, computers, SAN’s and all other network devise. This topology is the most common network arrangement used today. Most home networks connect
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Telephone and Data Networks The corporate main office is in Ohio. The office at this location uses Avaya Digital Phone System and is connected to a Cisco 10 MB Hub. All equipments in this location get access to the Avaya Digital Phone System through the 10 MB Hub. The plant at the Ohio location has set up different workstations; each workstation has a wireless bar code, scanner, shipper, and telephone. The office in California is currently using Private Branch eXchange System PBX system as
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Hierarchical star topology is where all computers are connected to a single, centrally located point. The central point is usually a hub of servers and switches located in the main equipment room. If there is a problem with the central hub then the network will not be able to work. It can bring the whole system down. By having everything centralize, it makes troubleshooting and reconfiguration simpler. It is usually a home networks that uses a hub or switch. Star Bus topology is the simplest
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Case: You are appointed as a technical expert to implement a network system for a small size maritime supplyrepresentative company with four users. The company provides supply services to Maritime shipping companies through a worldwide network of suppliers. Its owner is a maritime business expert who doesnot know much about the use of computer systems to support her business. Therefore, she has decidedto employ you as a consultant on a short term basis to set-up appropriate systems in a network
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Network Design Following the acquisition of new premises comprising a two-story office in Adeplhi, Maryland this provides UMUC with the ability to revise and improve their network topology accordingly and ensure that not only is connectivity provided in a consistent fashion but also to provide the required security for information accordingly. One of the fundamental requirements is to ensure that data is segregated in terms of staff and students so this will require the creation of dedicated subnets
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Tara Thomas Assignment 3.1 Topologies Topologies as described in the book are physical layout of the elements of the telecommunications cabling system structure. The first topology is the hierarchical star which is a single cable connects each machine to central device. The advantage is that the utilization of a switch port is typically 90% or greater, all connections configured at a central location making reconfiguration ,trouble- shooting simpler, It reduces power and the HVAC requirements
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addresses to keep all traffic segmented. The public network will use DHCP beginning with 10.15.3.2 through 10.15.3.254. This network is a Star Network as all computers will have the capability to “talk” to one another. By avoiding a bus or ring topology, we keep the network available in the event one machine is inoperable. Only specified IPs will be given access to the Administrative network to prevent students from accessing administrative resources.
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